Create table toolbar tool creates wrong number of columns in rtl environment. More specifically, the number of columns created is the difference between the requested number of columns and 11.
Example:
In rtl environment with gtk3, press the Create Table tool on the toolbar and drag the mouse to create a table with 3 columns. You will get a table with 3 columns instead.
This is a regression of the 5.3 series. It exists in 5.3.1.1 (1:5.3.1~rc1-0ubuntu1~zesty0).

On pc Debian x86-64 with master sources updated yesterday + gtk3, I don't reproduce this.
I created a brand new doc + enabled CTL then I typed Ctrl-Shift-D to switch in RTL mode.
Do you reproduce this with a brand new file?
Did you try to rename your LO directory profile (see https://wiki.documentfoundation.org/UserProfile#GNU.2FLinux)?

Sorry, I was unclear. This is not related to the directionality of text input, but rather to the directionality of your desktop environment. In order to set Gnome3 to right-to-left, use gnome-control-center->languages and put an rtl language, such as Hebrew, on the top of the list, then restart gnome. You know that you made it when your menus are in Hebrew, and are aligned to the top right instead of the top left.

Dear Bug Submitter,
This bug has been in NEEDINFO status with no change for at least
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due to lack of needed information.
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If you have already provided the requested information, please
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MassPing-NeedInfo-Ping-20170830

Version must correspond to the earliest one when the bug has been encountered.
For the rest, you didn't respond to my previous comment:
"
Do you reproduce this with a brand new file?
Did you try to rename your LO directory profile (see https://wiki.documentfoundation.org/UserProfile#GNU.2FLinux)?
"

Now I see I have a misspelling in my example. Here is the correct example:
In rtl environment with gtk3, press the Create Table tool on the toolbar and drag the mouse to create a table with 3 columns. You will get a table with 8 columns instead.

(In reply to Yotam Benshalom from comment #6)
> Now I see I have a misspelling in my example. Here is the correct example:
>
> In rtl environment with gtk3, press the Create Table tool on the toolbar and
> drag the mouse to create a table with 3 columns. You will get a table with 8
> columns instead.
I can't reproduce it in
Version: 6.0.0.0.alpha0+
Build ID: 383aab7ed63bf30931c1cf89138707d2228b5dce
CPU threads: 4; OS: Linux 4.10; UI render: default; VCL: gtk3;
Locale: ca-ES (ca_ES.UTF-8); Calc: group

Yotam: would suggest you submit a screencast of the problem so that it is easier for us to see the issue. There are various free screencast software available for use, including Camstudio (Windows), Jing (Mac), Simple Screen Recorder (Linux) or screencast-o-matic.com (Web).

Regression introduced by:
author Caolán McNamara <caolanm@redhat.com> 2016-07-07 09:39:00 (GMT)
committer Caolán McNamara <caolanm@redhat.com> 2016-07-07 15:57:01 (GMT)
commit 6b9f42ea1dc0926bc445982ad57bf93561f1bd03 (patch)
tree 1ba078e3eeacabd4f0560b4ca48b10701b149898
parent fb045517532aababc06fb4b1112def53b03d9144 (diff)
Resolves: rhbz#1351224 wayland grab related crashes
only one popup active at a time. Try and find the right path through the
uncanny valley which allows popups to appear, to get all mouse input that
happens to them, forward keyboard input to their parents, dismiss when the
mouse is clicked outside them and not crash if another popup wants to appear
to replace it
Bisected with bibisect-linux-64-5.3
Adding Cc: to Caolán McNamara